Publishing with Custom packages?

[PhantomFragger]

Hi im making a ut3 racing mod for a uni project and one group member suggested we use custom packages for each section which let us share meshes etc. This has worked fine until i came to publish it recently and crashes at the (seekFree) point does anyone know if its another issue or is it because the packages are not saved as the map name which is all i can think it to be as ive never had trouble publishing before when saving under the map file.

thanks